Pentair 152509Z Triton C 8-1/2 in Square Closure Ring

A Triton C filter that weeps or sprays at the dome closure usually does not need a new closure — it needs a new closure ring. The Pentair 152509Z is the genuine 8-1/2 in. square closure ring that seals the closure on Pentair Triton C sand filters. Over years of heat and pressure cycles the original ring flattens and hardens until it can no longer seal; this fresh ring restores the seal so the closure closes up tight and dry. This is a genuine Pentair part in retail (Z) packaging.

🚩 PRO TIP: Clean the closure groove of sand and old rubber before seating the 152509Z, and work the ring evenly into the groove all the way around — a pinched or twisted section will leak as soon as the pump pressurizes the tank.

PRODUCT FEATURES & SPECIFICATIONS:

• Brand: Pentair
• MPN: 152509Z (base part 152509)
• UPC: 788379885694
• Type: Square Closure Ring
• Size: 8-1/2 in.
• Compatibility: Pentair Triton C sand filters with the 8-1/2 in. closure
• Weight: 0.06 lb

FREQUENTLY ASKED QUESTIONS:

• Which filters does the 152509Z fit? The 152509Z is the square closure ring for Pentair Triton C sand filters that use the 8-1/2 in. closure. Check your filter's parts diagram for part 152509 to confirm.
• Is this the closure itself? No. The 152509Z is the sealing ring only; the closure dome and clamp hardware are sold separately.
• Why is my Triton C closure leaking? The square ring flattens and hardens with age and stops sealing. Replacing the 152509Z ring — and cleaning the groove before installation — cures most closure leaks.

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